Leaked credentials
Your employees’ email addresses and passwords from data breaches at third-party providers or from infostealer infections. Attackers use them for credential stuffing and to take over VPN, Microsoft 365, or cloud accounts.
Security Services
Dark Web Monitoring for Businesses
Know what’s being traded about you.
Stolen credentials, customer databases, and internal documents are traded on the dark web – often before the affected companies find out. Our dark web monitoring automatically watches relevant sources using our own applications and notifies you when findings related to your company turn up. We then support you individually with countermeasures – before a data leak turns into an attack.
- In-house monitoring applications
- Automatic notifications
- Individual quote
Definition
What is the dark web – and what does dark web monitoring do?
Dark web monitoring – also known as darknet monitoring – is the continuous monitoring of criminal marketplaces, forums, and leak sites for information that concerns your company. Our in-house applications automatically search for your domains, brands, IP address ranges, and other identifiers. If something turns up, you are notified automatically – and we then support you individually with countermeasures.
The dark web itself, often also called the darknet, is a part of the internet that is not indexed by search engines and can only be accessed with special software such as the Tor Browser. There, encryption and anonymization also protect journalists, whistleblowers, and people in authoritarian states; using it is legal in Germany. But the same anonymity makes the dark web a marketplace for cybercriminals who trade malware, stolen data, and access to corporate networks.
The benefit lies in the head start: stolen data is often not misused right away but first offered for sale, resold, or analyzed. If you learn during this phase that credentials or customer data are circulating, you can reset passwords, lock accounts, warn those affected, and close attack vectors – before attackers use them.
Dark web monitoring also supports your obligations under the GDPR and the EU NIS2 Directive: if you learn about a data breach early, you can assess reporting obligations in time and limit the consequences for those affected. Within an information security management system (ISMS), it is one building block of threat intelligence as provided for in ISO/IEC 27001:2022, Annex A (control 5.7, threat intelligence).
Our approach
How our dark web monitoring works
First, we define together what to search for: domains and email addresses, company and brand names, product names, IP address ranges, or specific terms such as internal project names. The more precise the search profile, the more meaningful the results.
Our in-house applications then monitor the relevant sources continuously and automatically. Depending on the engagement and search profile, monitoring can cover, for example, marketplaces, forums, ransomware groups’ leak sites, paste sites, or relevant messenger channels. If a match for your search profile appears, the system detects it automatically and notifies your designated contacts.
After the notification, we support you individually: together, we define suitable countermeasures to prevent or limit damage – from resetting affected passwords and locking accounts to checking whether your systems have been breached. If the suspicion hardens, our digital forensics team helps you investigate.
Risks for businesses
What is traded about companies on the dark web
Infostealer logs and session cookies
In addition to passwords, infostealers also capture browser cookies and session tokens that can be used to bypass multi-factor authentication. Infected personal devices used to access company accounts are particularly critical.
Customer and personal data
Databases containing customer data, orders, or payment information are sold or published openly – with consequences for your customers, your reporting obligations under the GDPR, and your reputation.
Trade secrets and internal documents
Design data, contracts, quotes, or strategy papers are offered as merchandise. The damage ranges from competitive disadvantages to the loss of trade secret protection.
Access to your network
So-called initial access brokers sell ready-made access to corporate networks, for example via compromised VPN or RDP accounts. Such offers often precede ransomware attacks.
Publications on ransomware leak sites
Extortion groups publish stolen data on their own leak sites to increase the pressure on their victims. Data from your service providers, suppliers, or customers can also contain information about your company.
Counterfeit products and brand abuse
Low-quality counterfeit products, pirated software, or misused brand names damage revenue and reputation and can raise liability issues.
Attack planning and insider recruitment
In forums, companies are discussed as targets, phishing kits with third-party branding are offered, or insiders are sought who will sell access for money.
Service options
Dark web monitoring tailored to your needs
Ongoing monitoring
Continuous monitoring
Continuous, automated monitoring of your search profile with our in-house applications.
- Individual search profile
- Automatic detection of new matches
- Notification of findings
Big picture
Monitoring & OSINT
Dark web monitoring combined with an OSINT assessment of your publicly visible attack surface.
- Open sources, code repositories, and social networks
- Lookalike domains as well as DNS and email security
- OSINT assessment report with remediation recommendations
Response
Support with findings
After a notification, we work with you on individual solutions to fix or contain the problem.
- First steps such as password resets and account lockouts
- Compromise checks and digital forensics
- Technical facts for notifications under the GDPR and NIS2
Process
Dark web monitoring in five steps
From search profile to notification – clearly structured like all our security services and tailored to your company.
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01
Initial consultation & scoping
We clarify goals, corporate structure, and assets worth protecting – from domains and brands to particularly sensitive information.
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02
Individual quote
Based on the scoping, we prepare an individual quote for you – tailored to the search profile, scope, and duration of the monitoring.
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03
Search profile & setup
We define search terms, coordinate data protection aspects with you, and set up the monitoring in our in-house applications.
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04
Automated monitoring
Our applications monitor the relevant sources continuously and automatically detect matches for your search profile.
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05
Notification & support
When a finding turns up, your designated contacts are notified automatically. We then support you individually and agree on countermeasures with you.
Notification
Notification of findings – and support afterward
When a finding related to your search profile is detected, the system notifies you automatically: you learn what was found and where it turned up. We then support you individually with countermeasures. We transmit sensitive content such as passwords only via agreed, secure channels. On request, we also summarize the results in regular reports – easy to understand for executive management and with all the details for your IT team.
- Automatic notification of findings related to your search profile
- Details of each finding, including source and time
- Affected domains, accounts, or data sets
- Individual support with countermeasures
- A basis for your ISMS and for assessing reporting obligations
- Support with remediation and investigation on request
Hear it from us – not from attackers
Whether it’s leaked passwords, customer data, or access to your network: the sooner you know, the better you can respond.
FAQ
Frequently asked questions about dark web monitoring
Didn’t find your question? Call us at +49 2932 465265-0 or email info@rootsektor.de.
Is using the dark web legal?
Yes. Accessing the dark web with software such as the Tor Browser is not prohibited in Germany. Certain acts are punishable, however, such as trading in stolen data (Datenhehlerei under § 202d StGB, the German Criminal Code). Our monitoring operates exclusively within the legally permissible framework.
What information do you need from us?
For the search profile, we mainly need your domains, company and brand names, and, if applicable, your IP address ranges. You don’t need to send us passwords or other secrets. If executives’ names are also to be monitored, we coordinate this in advance with you and the people responsible for data protection.
What happens when a finding turns up?
The monitoring detects the match automatically and notifies your designated contacts via an agreed channel. We then support you individually and decide together what to do – for example, resetting passwords, locking accounts, checking affected systems, or preparing notifications. If a breach is suspected, our digital forensics team supports you.
Can data be deleted from the dark web?
Usually not – once data has been published, it gets copied and redistributed. That’s why the key is to make it worthless: change passwords, revoke sessions and tokens, secure access, and inform those affected. Legal action can also make sense against counterfeits and brand abuse.
How does dark web monitoring differ from an OSINT assessment?
The OSINT assessment examines what is visible about your company in openly accessible sources – such as websites, social networks, code repositories, or DNS records. Dark web monitoring continuously watches the sources where stolen information is traded. Combined, the two provide a comprehensive picture of your external threat exposure.
Does the monitoring find everything that’s circulating about us?
No – and no provider can honestly promise that. Many offers are traded in closed forums or private channels, and not every data set can be clearly attributed. But targeted monitoring significantly increases the chance of detecting leaks early and responding before damage occurs.
Does dark web monitoring replace other security measures?
No. Dark web monitoring is an early warning system: it shows when information has already been leaked. Only preventive measures can stop data from leaking in the first place – for example, phishing-resistant MFA, regular penetration tests, and security-aware employees trained through Security Awareness & Phishing Simulation. You can describe the scope for a penetration test directly via our Pentest Quote page.
Which companies is dark web monitoring suitable for?
For any company that works with customer data, trade secrets, or online access. It is particularly relevant for industries with valuable data, such as manufacturing, healthcare, financial services, e-commerce, and law firms, as well as for companies that must meet requirements under NIS2 or KRITIS (critical infrastructure under German law).
Related pages
Let’s talk about your search profile
Tell us your most important domains and brands and what you particularly want to protect. We’ll show you what dark web monitoring could look like for your company and prepare an individual quote.